Abstract: An industrial robot including a first robot part and a second robot part arranged to be moved in relation to each other. A balancing device is arranged between the first robot part and the second robot part. The balancing device is arranged to counteract a gravitational force upon relative movement of the robot parts. The balancing device includes a mechanical spring and a spring housing arranged enclosing the spring. The spring housing includes at least one air inlet adapted for pressurized air supply.

Abstract: A sealing system including a rotary sealing surface on a rotary shaft and a rotary shaft lip seal, of which the rotary sealing surface has a surface coating layer of a solid lubricant substance. The invention further includes an industrial robot having several axes of rotation, including a manipulator with drive units for rotating robot parts according to the axes of rotation of the robot, and at least one of the drive units having a rotary shaft provided with such a sealing system. In addition, the invention includes a method for providing a rotary sealing surface on a rotary shaft, including coating the intended sealing surface of the rotary shaft with a surface coating layer of a solid lubricant substance.

Abstract: An industrial robot including a first robot part and a second robot part arranged to be moved in relation to each other. A balancing device is arranged between the first robot part and the second robot part. The balancing device is arranged to counteract a gravitational force upon relative movement of the robot parts. The balancing device includes a mechanical spring and a spring housing arranged enclosing the spring. The spring housing includes at least one air inlet adapted for pressurized air supply.

Abstract: A fuel assembly for a boiling water reactor has a bundle of fuel rods consisting of a top tie plate and a bottom part which, together with a plurality of fuel rods, constitutes a rigid unit. The fuel rod bundle is surrounded by a fuel channel (1), to which there is attached a fixing member (2) cast in stainless steel. The fixing member (2) is attached to a vertical projection (3), extending from the top tie plate, by means of a bolt (4) which is loaded with a tensile force and a sleeve (10) which is loaded with a compressive force and which surrounds the bolt and is arranged in the fixing member, the coefficients of thermal expansion of the bolt and the sleeve being less than that of the fixing member.